Geothermal Power Plants In the US

The Largest Geothermal Power Plants in the US

PlantCity/CountyStatePrimary Fuel TypeMWh GeneratedCO2 EmissionsRank EmissionsCO2 Emissions/MWhRant Emissions/MWhClosing Date
Calistoga Power PlantCalpine (100.00%)
Lake County CA Geothermal467,641MWh11
Geysers Unit 5-20Calpine (100.00%)
Sonoma County CA Geothermal4,390,209MWh11
John L. Featherstone PlantHudson Ranch Power I LLC (100.00%)
Imperial County CA Geothermal437,381MWh11
McGinness Hills 3Ormat Nevada Inc (100.00%)
Lander County NV Geothermal436,528MWh11
Sonoma County CA Geothermal402,619MWh11
Coso Finance PartnersCoso Operating Co LLC (100.00%)
Inyo County CA Geothermal381,524MWh11
Coso Power DevelopersCoso Operating Co LLC (100.00%)
Inyo County CA Geothermal305,200MWh11
Sonoma County CA Geothermal303,903MWh11
Dixie ValleyOrmat Nevada Inc (100.00%)
Churchill County NV Geothermal295,952MWh11
Tungsten MountainTungsten Mountain (100.00%)
Churchill County NV Geothermal294,648MWh11
Lightning Dock Geothermal HI-01, LLCLightning Dock Geothermal HI-01, LLC (100.00%)
Cotton City CDP NM Geothermal27,522MWh11
North ValleyNorth Valley (100.00%)
Churchill County NV Geothermal207,262MWh11
Soda Lake 3AMOR IX, LLC (100.00%)
Churchill County NV Geothermal123,241MWh11
King Manalo
Last Reviewed By: King Manalo
Published: 2025-07-29